Products you can control through Echo and Alexa-enabled Devices. Y Google Assistant is ready to help when and where you need it. Manage your schedule, get help with everyday tasks, control smart home devices, enjoy your entertainment, and much more. Y F means that the product is rated in its category in terms of energy efficiency. The Energy Labeling system is based on EU Regulation 2017/1369/EU. F TCL 43QLED780K, 43", 3840 x 2160 pixels, 4K Ultra HD, QLED, Smart TV, Black TCL 43QLED780K. Display diagonal: 43", Display resolution: 3840 x 2160 pixels, HD type: 4K Ultra HD, Display technology: QLED, LED backlighting type: Direct-LED. Smart TV. Motion interpolation technology: PPI (Picture Performance Index) 3400, Display brightness: 430 cd/m², Response time: 15 ms. Digital signal format system: DVB-C, DVB-S2, DVB-T2. Ethernet LAN. Product color: Black